Thickening/stabilizing agent and thickened/stabilized composition using the same
a technology of stabilizing agent and composition, which is applied in the direction of pharmaceutical non-active ingredients, organic chemistry, coatings, etc., can solve the problem that the degree of gelatinization of 12-hydroxystearic acid cannot be adjusted, and achieve uniform stabilization of composition, thickening and/or stabilizing state stably, and easy to thicken and/or gelatinize
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synthesis example 1
ning / Stabilizing Agent (1) (1,2,4,5-benzenetetracarboxylic Acid di(butyramide) di(oleylamide))
[0089]Into a 100-mL four-neck separable flask equipped with a Dimroth condenser, a nitrogen inlet, a dropping funnel, and a thermocouple, 20 mL of pyridine, 3.0 g (0.014 mol) of 1,2,4,5-benzenetetracarboxylic 1,2:4,5-dianhydride, and 7.4 g (0.028 mol) of oleylamine were charged. The components were aged for 3 hours while setting the system internal temperature at 50° C.
[0090]Subsequently, 2.1 g (0.028 mol) of butylamine and 7.0 g (0.056 mol) of diisopropylcarbodiimide were charged, followed by aging for further 8 hours to give a crude mixture.
[0091]After removing low-boiling components from the crude mixture on an evaporator, the resulting matter was washed with methanol and yielded a pale yellow wet powder. Further, the obtained wet powder was recrystallized from CHCl3 / CH3OH (70 / 30 (v / v)) and yielded 7.3 g of 1,2,4,5-benzenetetracarboxylic di(butyramide) di(oleylamide) in a yield of 61%. T...
synthesis example 2
ning / Stabilizing Agent (2) (1,2,4,5-cyclohexanetetracarboxylic Acid di(butyramide) di(oleylamide))
[0093]Into a 100-mL four-neck separable flask equipped with a Dimroth condenser, a nitrogen inlet, a dropping funnel, and a thermocouple, 20 mL of pyridine, 4.5 g (0.02 mol) of 1,2,4,5-cyclohexanecarboxylic 1,2:4,5-dianhydride, and 10.7 g (0.04 mol) of oleylamine were charged. The components were aged for 3 hours, while setting the system internal temperature at 50° C.
[0094]Subsequently, 2.9 g (0.02 mol) of butylamine and 5.5 g (0.044 mol) of diisopropylcarbodiimide were charged, followed by aging for further 8 hours to give a crude mixture.
[0095]After removing low-boiling components from the crude mixture on an evaporator, the resulting matter was washed with methanol and yielded a pale yellow wet powder. Further, the obtained wet powder was recrystallized from CHCl3 / CH3OH (70 / 30 (v / v)) and yielded 11.6 g of 1,2,4,5-cyclohexanetetracarboxylic acid di(butyramide) di(oleylamide) in a yie...
synthesis example 3
ning / Stabilizing Agent (3) (1,2,4,5-benzenetetracarboxylic Acid di(2-ethylhexylamide) di(oleylamide))
[0097]Into a 100-mL four-neck separable flask equipped with a Dimroth condenser, a nitrogen inlet, a dropping funnel, and a thermocouple, 20 mL of pyridine, 3.0 g (0.014 mol) of 1,2,4,5-benzenetetracarboxylic 1,2:4,5-dianhydride, and 7.4 g (0.028 mol) of oleylamine were charged. The components were aged for 3 hours while setting the system internal temperature at 50° C.
[0098]Subsequently, 3.6 g (0.028 mol) of 2-ethylhexylamine and 7.0 g (0.056 mol) of diisopropylcarbodiimide were charged, followed by aging for further 8 hours to give a crude mixture.
[0099]After removing low-boiling components from the crude mixture on an evaporator, the resulting matter was washed with methanol and yielded a pale yellow wet powder. The obtained wet powder was recrystallized from CHCl3 / CH3OH (70 / 30 (v / v)) and yielded 5.9 g of 1,2,4,5-benzenetetracarboxylic acid di(2-ethylhexylamide) di(oleylamide) in ...
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